npc_sniper
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Note:Some keyvalues, spawnflags, effect flags, inputs, or outputs might not affect an NPC, based on the functionality and coding of the NPC.
Tip:The sniper will pay attention to info_snipertargets if ordered to (with the SweepTarget, SweepTargetHighestPriority or SweepGroupRandomly inputs).
Bug:it's the only NPC that doesn't use server side ragdolls in 
Black Mesa 2012. [todo tested in ?]
AltNames: This entity is also tied to
Confirm:Doesn't seem to do anything?
 Class hierarchy
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| CProtoSniper |
| proto_sniper.cpp
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Sniper
npc_sniper is a point entity available in 
Half-Life 2, 
Half-Life 2: Episode One, 
Half-Life 2: Episode Two, 
Half-Life 2: Deathmatch, and 
Black Mesa.
In Half-Life 2 games, this is a Combine soldier with an overwatch sniper rifle which uses blue laser sight, making it capable of extreme accuracy at extreme range.
In Black Mesa, this is a HECU marine with a sniper rifle which uses red laser sight.
The npc_sniper does not actually have its own model - rather, it uses a Combine soldier (or HECU marine in Black Mesa) model in-game (if its Hidden flag is not set) playing its idle animation, with the rifle's laser coming from the center of the hull. Only explosions and burning damage can hurt the sniper.
The sniper doesn't turn on his sight until after he sees the player or an NPC within an acceptable range and angle, and will turn it off again after he is done. He will prioritize the player over any other target. If he loses track of the player, he will get frustrated and shoot three rounds at the area where the player was last seen, often targeting smaller prop_physics (like soda cans, melons, melon chunks, cinderblocks, ...) but not large prop_physics (like soda machines). He will then resume to targeting any other visible targets.
Note:Some keyvalues, spawnflags, effect flags, inputs, or outputs might not affect an NPC, based on the functionality and coding of the NPC.Tip:The sniper will pay attention to info_snipertargets if ordered to (with the SweepTarget, SweepTargetHighestPriority or SweepGroupRandomly inputs).Bug:it's the only NPC that doesn't use server side ragdolls in Black Mesa 2012. [todo tested in ?]AltNames: This entity is also tied to proto_sniper. Keyvalues
- Name (targetname) <string>
- The name that other entities refer to this entity by, via Inputs/Outputs or other keyvalues (e.g.
parentnameortarget).
Also displayed in Hammer's 2D views and Entity Report.See also: Generic Keyvalues, Inputs and Outputs available to all entities
- Patience Radius (radius) <integer>
- Sniper will hold fire until the target is within this radius. After that, sniper will always attack, even if the target retreats outside of this radius.
- Initial Misses (misses) <integer>
- How many times to miss a target on purpose before beginning to fire accurately.
- Beam Brightness (0 to 255) (beambrightness) <integer>
- How bright the laser sight beam should be. (0 - 255)
- Shoot zombies in chest (shootZombiesInChest) <boolean>
- If true, aim for chest instead of headcrab. Useful when at great distance and height.
- Bullet shield distance (shielddistance) <float>
- !OBSOLETE
- Bullet shield radius (shieldradius) <float>
- !OBSOLETE
- Paint interval (PaintInterval) <integer>
- Sniper will keep a target painted for this many seconds before shooting. 'Faster Shooting' sniper flag multiplies this by 0.75.
- Paint interval variance (PaintIntervalVariance) <integer>
- When shooting at NPCs, a random number between 0 and this is added to PaintInterval for every shot.
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CBaseCombatCharacter:
CAI_BaseNPC:
DamageFilter:
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Flags
BaseNPC flags
- Wait Till Seen : [1]
- Prevents this NPC from seeing (or being seen) until it enters a player's viewcone.
- Gag : [2]
- Won't make IDLE sounds until it's angry.
- Fall to ground (unchecked means teleport to ground) : [4]
- Drop Healthkit : [8]
- Causes this NPC to drop an item_healthvial upon dying.
- Efficient : [16]
- Don't acquire enemies or avoid obstacles
- Wait For Script : [128]
- Forces this NPC to "wait" in an idle state until it finishes playing a scripted_sequence.
- Long Visibility/Shoot : [256]
- By default, increases a NPC's sight range to
6,000units and allows it to attack from anywhere within that distance.
- Fade Corpse : [512]
- Think outside PVS : [1024]
- Allows this NPC to run its regular AI outside of any player's PVS.
- Template NPC : [2048]
- Marks this NPC as a template for entities like npc_template_maker. The NPC will not spawn on its own. This is not needed for point_template.
- Do Alternate collision for this NPC (player avoidance) : [4096]Note:This flag is disabled in episodic for player companions, because the
StartScriptinginput does this.
- Don't drop weapons : [8192]
- Ignore player push : [16384] (in all games since
) - Entity won't give way to player.
- Hidden : [65536]
- The sniper will not have a model while alive. Should be checked.
- Laser Viewcone : [131072]
- No Corpse : [262144]
- The sniper leaves no corpse.
- Start Disabled : [524288]
- The sniper starts disabled
- Faster shooting : [1048576]
Confirm:Doesn't seem to do anything?- No sweep away from target : [2097152]
- The sniper will not reset it's aim after firing
Todo: No sweep away from target was missing from this page for over 10 years, is it absent in some games? Existence confirmed in 
and
and Inputs
- EnableSniper
- Enable Shooting.
- DisableSniper
- Disable Shooting.
- SetDecoyRadius <integer>
- Set Decoy Radius.
- SweepTarget <targetname>
- Makes the sniper sweep to an info_snipertarget specified in the parameter, with a behavior specified in the properties of the info_snipertarget.
- Note:Using this input to set the sniper's target to anything enclosed or touching a Block LOS textured brush may cause the map to crash.
- SweepTargetHighestPriority <targetname>
- Same as SweepTarget, but the sniper will prioritize sweeping to this target above targeting anything else, including the player.
- SweepGroupRandomly <string>
- The sniper will take alternating shots at info_snipertargets belonging to a specific group (specified in its parameter) until interrupted by an NPC. (Group associations are declared in the Group Name property of these targets.)
- StopSweeping
- Stop any target sweeping operation started by entity I/O
- ProtectTarget <targetname>
- Protect the specified target. The sniper will attempt to shoot the enemy nearest the protect target at all times.
BaseNPC inputs
CAI_BaseNPC:
- ActivateSpeedModifier !FGD
- DisableSpeedModifier !FGD
- Break
- Smash into pieces. If this is not possible, disappear.
- BecomeRagdoll (in all games since )
- Remove itself and instantly become a ragdoll with zero force (just go limp). OnDeath, etc. outputs will NOT be fired.
- ForceInteractionWithNPC <string> <string> (in all games since )
- Force the NPC to use a dynamic interaction with another NPC. Syntax is <targetname> <dynamic interaction>.
- ForgetEntity <targetname>
- Clears out the NPC's knowledge of a named entity.
- UpdateEnemyMemory (in all games since )
- Update (or create) this NPC's memory of of the given entity.
- GagEnable
- GagDisable
- Gagged NPCs won't speak (or moan, caw, etc.) unless made to be a choreographed scene.
- HolsterWeapon (in all games since )
- UnholsterWeapon (in all games since )
- Force the NPC to holster or unholster their weapon. Ignored if the NPC is scripting or if the NPC doesn't use weapons.
- HolsterAndDestroyWeapon (in all games since )
- Same as
HolsterWeapon, except the weapon is destroyed once it has been concealed.
- IgnoreDangerSounds <float>
- Ignore danger sounds for the specified number of seconds.
- InsideTransition !FGD
- OutsideTransition !FGD
- SetBodyGroup <integer>
- HACK: Sets this NPC's body group (from 0–n).
- SetEnemyFilter <string>
- SetHealth <integer>
- Set the NPC's health.
- SetMaxLookDistance <float> (only in )
- Sets the maximum look distance for the NPC. Defaults are 2048 and 6000 for long range NPCs.
- SetRelationship <string|targetname or classname> <string|disposition> <int|rank>
- Changes whether this NPC likes or dislikes certain others. Used like the ai_relationship entity, with this NPC as the subject.
- Values for
dispositionare:D_HT: HateD_FR: FearD_LI: LikeD_NU: Neutral
- SetSquad <string>
- Change the name of this NPC's squad. Leaving the parameter blank will remove the NPC from any existing squad.
- StartScripting
- StopScripting
- Enter/exit scripting state, where NPCs ignore a variety of stimulus that would make them break out of their scripts. They ignore danger sounds, ignore +Use, don't idle speak or respond to other NPCs' idle speech, and so on.
- Wake
- Wakes up the NPC if it is sleeping.
CBaseCombatCharacter:
- KilledNPC !FGD
- Tells the entity it killed something. Despite the name, this can include a player. This input will be automatically sent by the victim when they die.
- physdamagescale <float>
- Scales damage energy when this character is hit by a physics object. With a value of 0 the NPC will take no damage from physics.
DamageFilter:
Outputs
- OnShotFired
- Sniper's current enemy.
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See also
Categories:
- TODO rewrite lang to LanguageBar
- CBaseAnimating
- Non-internal Half-Life 2 entities
- Half-Life 2 entities
- Half-Life 2 point entities
- Non-internal Half-Life 2: Episode One entities
- Half-Life 2: Episode One entities
- Half-Life 2: Episode One point entities
- Non-internal Half-Life 2: Episode Two entities
- Half-Life 2: Episode Two entities
- Half-Life 2: Episode Two point entities
- Non-internal Half-Life 2: Deathmatch entities
- Half-Life 2: Deathmatch entities
- Half-Life 2: Deathmatch point entities
- Non-internal Black Mesa entities
- Black Mesa entities
- Black Mesa point entities
- Immobile NPCs
- NPC entities
- Pages with uncategorized bugs
- Half-Life 2 NPCs